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Table 3 Myocardial injury assessed by MRI

From: Intra-coronary morphine versus placebo in the treatment of acute ST-segment elevation myocardial infarction: the MIAMI randomized controlled trial

  Morphine group
(n = 38)
Placebo group
(n = 35)
P value
LV mass, g 131 ± 34 128 ± 33 0.63
Infarct size, g 36.6 ± 22.5 39.5 ± 17.7 0.54
Infarct size/LV mass, % 27.2 ± 15.0 30.5 ± 10.6 0.28
Area at risk/LV mass, % 31.3 ± 12.5 36.0 ± 11.2 0.15
Infarct size/Area at risk, % 80.5 ± 19.4 84.1 ± 19.5 0.49
LV ejection fraction, % 49.2 ± 11.0 47.6 ± 8.7 0.50
LV end-diastolic volume, mL/m2 82.2 ± 16.8 78.4 ± 21.6 0.41
LV end-systolic volume, mL/m2 42.5 ± 14.9 41.7 ± 15.7 0.83
  1. LV left ventricle